Walker 350-34441 Oxygen Sensor - Downstream

Overview of Walker 350-34441 Oxygen Sensor for BMW Models

The Walker 350-34441 oxygen sensor is designed specifically for select BMW vehicles, including the 325i, 528i, 530i, and X3 models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for BMW 325i, 528i, 530i, and X3
• 12.32-inch wiring harness length with 22 gauge wires
• Four-wire configuration with radiused polygon male connector
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 15.87 inches for precise installation

Detailed Features and Specifications

This Walker oxygen sensor (part number 350-34441) features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The four-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring reliable data transmission. The wiring harness length of 12.32 inches and 22 gauge wire measurement provide durability and flexibility during installation. The connector is a radiused polygon male type, designed to fit securely with the vehicle’s wiring harness. The sensor mounts via a threaded connection with an 18.0 mm diameter, matching OEM specifications for a secure fit.

Walker Products Aftermarket Line Information

The Walker Products Aftermarket line offers replacement emission control components engineered to meet or exceed original equipment standards. This oxygen sensor is part of that line, providing a direct fit solution for BMW vehicles requiring precise sensor performance and durability. The product line focuses on quality and compatibility, ensuring that the 350-34441 sensor integrates seamlessly with the vehicle’s emission system.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve check engine light issues related to oxygen sensor faults
• Improves fuel economy by providing precise exhaust gas readings
• Reduces harmful emissions by maintaining proper catalytic converter function
• Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

When installing the Walker 350-34441 oxygen sensor, ensure the vehicle is cool to avoid burns. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the connector type matches the vehicle harness before installation. Thread the sensor carefully to avoid cross-threading and torque to manufacturer specifications. The 12.32-inch wiring harness length allows for flexible routing without strain.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors undergo rigorous testing to meet emission control standards and ensure long-term reliability. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emission regulations and supports vehicle performance.